19279870

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1$

素因数の和:217

約数の個数: 64

約数和(自身を含む): 39813120

約数和(自身を除く): 20533250

約数列:

[1, 2, 5, 10, 17, 19, 34, 38, 47, 85, 94, 95, 127, 170, 190, 235, 254, 323, 470, 635, 646, 799, 893, 1270, 1598, 1615, 1786, 2159, 2413, 3230, 3995, 4318, 4465, 4826, 5969, 7990, 8930, 10795, 11938, 12065, 15181, 21590, 24130, 29845, 30362, 41021, 59690, 75905, 82042, 101473, 113411, 151810, 202946, 205105, 226822, 410210, 507365, 567055, 1014730, 1134110, 1927987, 3855974, 9639935, 19279870]

約数ペア:

[(1, 19279870), (2, 9639935), (5, 3855974), (10, 1927987), (17, 1134110), (19, 1014730), (34, 567055), (38, 507365), (47, 410210), (85, 226822), (94, 205105), (95, 202946), (127, 151810), (170, 113411), (190, 101473), (235, 82042), (254, 75905), (323, 59690), (470, 41021), (635, 30362), (646, 29845), (799, 24130), (893, 21590), (1270, 15181), (1598, 12065), (1615, 11938), (1786, 10795), (2159, 8930), (2413, 7990), (3230, 5969), (3995, 4826), (4318, 4465)]